On Fri, 21 Oct 2016, Wang Nan wrote: > -.SS Using prctl(2) > +.SS Using prctl why this change? > +.BR PERF_EVENT_IOC_PAUSE_OUTPUT " (since Linux 4.7)" > +.\" commit 86e7972f690c1017fd086cdfe53d8524e68c661c > +This allows pausing and resuming the event's ring-buffer. A > +paused ring-buffer does not prevent samples generation, but simply > +discards them. The discarded samples are considered lost, causes > +.BR PERF_RECORD_LOST > +to be generated when possible. I don't know if it's worth mentioning that the reason to add this is to allow reading the ring-buffer without having to worry about data being overwritten. There are a few odd wording choices (mostly plural nouns) but otherwise looks fine to me. Reviewed-by: Vince Weaver <vincent.weaver@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
